Atlanta Police Department spokeswoman Elizabeth Espy says authorities found a tube-shaped object taped to the east side of the 14th Street bridge, which spans the downtown connector. The connector is a stretch of freeway where Interstates 75 and 85 meet in Atlanta.

According to the Georgia Department of Transportation, lanes in both directions and southbound I-75 ramps to 14th Street are closed while police investigate.

Georgia State Patrol is assisting in the investigation. Additional details weren't immediately available